Network Management Strategies for the CIO
-
Access point problems running on PoE
Powering a wireless access point using Power over Ethernet is usually a straightforward process, but troubleshooting an issue can be tricky. Wireless expert Lisa Phifer steps through some possible...
-
Hunting down the source of a wireless attack
A wireless intrusion prevention system (WIPS) can notify you in the event of an attack on the wireless attack, but might only give an approximate location of the attacker. Wireless expert Lisa Phi...
-
Linking an unmanaged switch and DHCP server
Unmanaged Linksys switches don't know where to send BootP and DHCP requests. Find out what to do to fix the problem of unmanaged switches and DHCP servers.
-
How to troubleshoot slow VPN connections
Suffering slow VPN connection? Try checking VPN concentrators and caching.
-
Extending 802.11n wireless LAN and connecting two WLANs
Extending 802.11 WLANs inside a large office can be done by bridging access points together, while outdoor mesh solutions can be used to connect two WLANs between buildings on a small campus.
-
Do I need 802.11n wireless adapters for laptops and PCs to install 802.11n?
You don't need 802.11n wireless adapters for your laptops or PCs in order to install 802.11n and make use of 802.11n MIMO since most 802.11n APs are backward compatible, but you may need new client...
-
iPad WLAN performance problems emerge
Right out fo the gate, business users are running into problems with iPad WLAN performance, wondering: Why won't my iPad stay connected to the WLAN? While it seems there may be some inherent iPad W...
-
Configuring VLANs on a Cisco Catalyst 3750 and Catalyst 2950 together
-
How does User-based Rate Limiting (UBRL) do if I have oversubscribed a port or switch?
-
After VLAN configuration why can't computers in one gateway locate those in other gateways?
-
How do I access Windows Server 2003 remotely if I've lost my admin password?
-
What network troubleshooting tools can I use to determine the cause of slow web page access?
-
How does Active Directory for Cisco ACS work?
-
What is the difference between IP address and machine address?
Do you know the difference between an IP address and a machine address? Find out in this Ask the Expert response.
-
Frame relay vs. ATM networks: What's the difference?
Want to know the difference between frame relay and ATM networks? Find out in this expert response.
-
Does w ar driving enhance the security of wireless networks?
Learn how war driving can be used to secure your wireless network from our enterprise security expert Michael Gregg.
-
How can I access my secured wireless network without the security key?
Learn how to use BackTrack to access your secured wireless network from our enterprise security expert Michael Gregg.
-
How does rain affect wireless network data transfer?
In one of the wireless data acquisition installations, there is no data transfer during rain and mist. The wireless system works in 2.4 GHz frequency. What could be the cause of this?
-
Why is the 802.11g Wi-Fi throughput speed on my smartphone slow?
I recently purchased a smartphone with Wi-Fi (802.11g) but found video over Wi-Fi to be pretty choppy. I checked SpeedTest and I don't get anywhere near 54 Mbps when connected to Wi-Fi. Why not?
-
How can I increase throughput on my wireless mesh network?
We have installed a wireless mesh network that connects two access points (APs) to mesh nodes that are mounted at 25 meters high on 23 light poles. Poles are distributed around a container yard tha...
-
BYOD security: Which VPN is best for you, IPsec or SSL?
By 2016, 40% of the workforce will be mobile. IPsec VPNs are being widely discussed for BYOD security. But should we also be talking about SSL VPNs?
-
Why should you care about SDN?
Expert Jim Damoulakis weighs in on the potential of software-defined networking, or SDN, and why you should care.
-
Can you really have security, convenience and BYOD?
Employee-owned devices can seriously undermine security. But bring your own device is probably here to stay. So what should IT do?
Submit a question to our experts